Garmin 12xl. Available cheap on ebay. Bulletproof. Accurate to your described tolerances.
Steve
OT GPSes and altitude
Dec 04, 2009
28 Replies
Follow replies to this discussion?
Define "is".
I haven't noticed a difference. If anything the lowest performing GPS I have (smartphone with GPS chipset) has been performing better.
It could be if the earth wasn't in the way. X & Y are more accurate than Z (vertical) because of where the satellites are relative to a user. For Z to be as accurate your GPS would need to see satellites that are well below the horizon.
I ve taken mine out to several precision surveyed locations and the Lat long is very close, maybe 1 M, but altitude is all over the place.
Jimmie
since the gPSA knows WHERE YOU ARE, within a few feet it should have your altitude
Yes, my very OLD Magellan 315 GPS does
I had (RIP) a ski buddy who was nuts about how many vertical feet he could get in x time. He had some kind of barometer/recorder. I measure my skiing in fun/yard sales/injuries.
This is a (used) prototype of the first GPS watch (needs a battery and a dusting).
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It'll get you within 100 yards, horizontally, under any conditions where you have sufficient landmarks to triangulate a position, like, on top of a mountain.
On top of a mountain, at night, it's still nearly as good as anything now available. -----
- gpsman
GPSman..Hmmmm.. Do you know where I can get a copy of the Magellan DATAsend CD Rom for a Magellan 315 handheld GPS ? Its the DATASEND I'm looking for, not the MAPsend
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